CDL Practice Test Exam With 100% Correct Answers 2024

CDL Practice Test Exam With 100% Correct Answers 2024 When uncoupling, it's a good practice to... - answercoupling the glad hands together and/or using the dummy couplings If you cross your air lines on a new trailer with spring brakes... - answeryou won't be able to release the trailer brakes When traveling under 40 mph, you should follow other vehicles... - answerWith a distance of one second for every ten feet of your vehicle length In order to supply air to the trailer, you must first... - answerPush in the tractor protection valve If one of the glad hands on your blue air line is missing a seal... - answeryou might end up with a service line air leak . When you inspect the coupling, check to ensure that.. - answerthere's a little slack in the air lines The trailer hand valve should be used... - answerOnly to test the trailer brakes Which one of the following statements about tractor protection valves is NOT true? - answerWhen it closes it allows air to leak from the tractor line You can damage the landing gear if you... - answerback under the trailer at an angle . Which one of the following is controlled by the foot brake? - answerThe service air line When coupling the trailer, back up slowly until... - answerThe fifth wheel just touches the trailer The earliest way to notice a trailer skid is... - answerBy seeing it in your mirrors A king pin is... - answerpin which locks the trailer to the tractor on the fifth wheel The trailer should be lowered so that... - answerit's raised slightly when the tractor's backed under it Which of the following steps comes first? - answerconnect the air supply lines Before you begin coupling... - answercheck your path for hazard